Kathleen Marie Pieper

US Patent:

58510796, Dec 22, 1998

Filed:

Oct 25, 1996

Appl. No.:

8/738129

Inventors:

Richard L. Horstman - Cincinnati OH
Reuben E. Oder - Union KY
Robert L. Prosise - Cincinnati OH
Kathleen A. Pieper - White Hall MD
Genevieve R. Smith - Fairfield OH
Robert S. Dirksing - Cincinnati OH
Susan B. Baggott - Owings Mills MD

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

A46B 1102
A45D 4006

US Classification:

401174

Abstract:

A unidirectional twist-up dispensing device with incremental dosing for dispensing a product is provided. This twist-up dispensing device includes a hollow housing defining a chamber having an open dispensing end and an open actuating end having a interior surface. A piston located within the chamber being limited to translational movement within the chamber. The piston having a top side facing the dispensing end of the housing forming a variable volume portion of the chamber for storing the product. The piston also having a threaded rod extending therefrom opposite the top side. An actuator having a threaded aperture therethrough that engages the interior surface at the actuating end of the housing is also provided. The threaded aperture is concentric in the actuator and the actuator is adapted to rotate with respect to the housing in only one direction. The threaded rod engages the threaded aperture such that advancement of the piston toward the dispensing end occurs when the actuator is rotated, thereby causing the product to be dispensed.